/**
* Wait for the client to be connected (Passive) or Wait for the server to be connected to the
* client (Active)
*
* @return True if the connection is OK
* @throws Reply425Exception
*/
public boolean openDataConnection() throws Reply425Exception {
// Prepare this Data channel to be closed ;-)
// In fact, prepare the future close op which should occur since it is
// now opened
closedDataChannel = new WaarpFuture(true);
FtpDataAsyncConn dataAsyncConn = session.getDataConn();
if (!dataAsyncConn.isStreamFile()) {
// FIXME isConnected or isDNHReady ?
if (dataAsyncConn.isConnected()) {
// Already connected
// logger.debug("Connection already open");
session.setReplyCode(
ReplyCode.REPLY_125_DATA_CONNECTION_ALREADY_OPEN,
dataAsyncConn.getType().name() + " mode data connection already open");
return true;
}
} else {
// Stream, Data Connection should not be opened
if (dataAsyncConn.isConnected()) {
logger.error("Connection already open but should not since in Stream mode");
setTransferAbortedFromInternal(false);
throw new Reply425Exception("Connection already open but should not since in Stream mode");
}
}
// Need to open connection
session.setReplyCode(
ReplyCode.REPLY_150_FILE_STATUS_OKAY,
"Opening " + dataAsyncConn.getType().name() + " mode data connection");
if (dataAsyncConn.isPassiveMode()) {
if (!dataAsyncConn.isBind()) {
// No passive connection prepared
throw new Reply425Exception("No passive data connection prepared");
}
// Wait for the connection to be done by the client
// logger.debug("Passive mode standby");
try {
dataChannel = waitForOpenedDataChannel();
dataAsyncConn.setNewOpenedDataChannel(dataChannel);
} catch (InterruptedException e) {
logger.warn("Connection abort in passive mode", e);
// Cannot open connection
throw new Reply425Exception("Cannot open passive data connection");
}
// logger.debug("Passive mode connected");
} else {
// Wait for the server to be connected to the client
InetAddress inetAddress = dataAsyncConn.getLocalAddress().getAddress();
InetSocketAddress inetSocketAddress = dataAsyncConn.getRemoteAddress();
if (session
.getConfiguration()
.getFtpInternalConfiguration()
.hasFtpSession(inetAddress, inetSocketAddress)) {
throw new Reply425Exception(
"Cannot open active data connection since remote address is already in use: "
+ inetSocketAddress);
}
// logger.debug("Active mode standby");
ClientBootstrap clientBootstrap =
session
.getConfiguration()
.getFtpInternalConfiguration()
.getActiveBootstrap(session.isDataSsl());
session.getConfiguration().setNewFtpSession(inetAddress, inetSocketAddress, session);
// Set the session for the future dataChannel
String mylog = session.toString();
logger.debug(
"DataConn for: "
+ session.getCurrentCommand().getCommand()
+ " to "
+ inetSocketAddress.toString());
ChannelFuture future =
clientBootstrap.connect(inetSocketAddress, dataAsyncConn.getLocalAddress());
try {
future.await();
} catch (InterruptedException e1) {
}
if (!future.isSuccess()) {
logger.warn(
"Connection abort in active mode from future while session: "
+ session.toString()
+ "\nTrying connect to: "
+ inetSocketAddress.toString()
+ "\nWas: "
+ mylog,
future.getCause());
// Cannot open connection
session.getConfiguration().delFtpSession(inetAddress, inetSocketAddress);
throw new Reply425Exception("Cannot open active data connection");
}
try {
dataChannel = waitForOpenedDataChannel();
dataAsyncConn.setNewOpenedDataChannel(dataChannel);
} catch (InterruptedException e) {
logger.warn("Connection abort in active mode", e);
// Cannot open connection
session.getConfiguration().delFtpSession(inetAddress, inetSocketAddress);
throw new Reply425Exception("Cannot open active data connection");
}
// logger.debug("Active mode connected");
}
if (dataChannel == null) {
// Cannot have a new Data connection since shutdown
if (!dataAsyncConn.isPassiveMode()) {
session
.getConfiguration()
.getFtpInternalConfiguration()
.delFtpSession(
dataAsyncConn.getLocalAddress().getAddress(), dataAsyncConn.getRemoteAddress());
}
throw new Reply425Exception("Cannot open data connection, shuting down");
}
return true;
}
